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1.发明授权Method for estimating an hydraulic dwell time between two injection pulses of a fuel injector 有权用于估计燃料喷射器的两个喷射脉冲之间的液压驻留时间的方法公开(公告)号：US08893685B2
公开(公告)日：2014-11-25
申请号：US13182484
申请日：2011-07-14
CPC分类号： F02D41/402 , F02D41/401 , F02D41/403 , Y02T10/44
摘要： A method is provided for estimating a hydraulic dwell time between a first injection pulse and a second injection pulse performed by a fuel injector of an internal combustion engine. The method includes, but is not limited to determining a value of an electric dwell time between the first injection pulse and the second injection pulse, estimating a value of an injector closing delay between an instant in which an electric closing command of the first injection pulse is generated and an instant in which the fuel injector closes, estimating a value of an injector opening delay between an instant in which an electric opening command of the second injection pulse is generated and an instant in which the fuel injector opens, and calculating a value of the hydraulic dwell time as a function of the electric dwell time value, of the injector closing delay value and of the injector opening delay value.
摘要翻译： 提供了一种用于估计由内燃机的燃料喷射器执行的第一喷射脉冲和第二喷射脉冲之间的液压停留时间的方法。 该方法包括但不限于确定第一喷射脉冲和第二喷射脉冲之间的电停留时间的值，估计在第一喷射脉冲和第二喷射脉冲的闭合指令之间的喷射器闭合延迟的值 产生燃料喷射器闭合的瞬间，估计在产生第二喷射脉冲的电开启指令的瞬间与燃料喷射器打开的瞬间之间的喷射器打开延迟的值，并计算值 作为电停留时间值，喷射器关闭延迟值和喷射器打开延迟值的函数的液压停留时间。
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2.发明申请METHOD FOR ESTIMATING AN HYDRAULIC DWELL TIME BETWEEN TWO INJECTION PULSES OF A FUEL INJECTOR 有权燃料喷射器两个注射脉冲之间的液压时间估计方法公开(公告)号：US20120035833A1
公开(公告)日：2012-02-09
申请号：US13182484
申请日：2011-07-14
CPC分类号： F02D41/402 , F02D41/401 , F02D41/403 , Y02T10/44
摘要： A method is provided for estimating a hydraulic dwell time between a first injection pulse and a second injection pulse performed by a fuel injector of an internal combustion engine. The method includes, but is not limited to determining a value of an electric dwell time between the first injection pulse and the second injection pulse, estimating a value of an injector closing delay between an instant in which an electric closing command of the first injection pulse is generated and an instant in which the fuel injector closes, estimating a value of an injector opening delay between an instant in which an electric opening command of the second injection pulse is generated and an instant in which the fuel injector opens, and calculating a value of the hydraulic dwell time as a function of the electric dwell time value, of the injector closing delay value and of the injector opening delay value.
摘要翻译： 提供了一种用于估计由内燃机的燃料喷射器执行的第一喷射脉冲和第二喷射脉冲之间的液压停留时间的方法。 该方法包括但不限于确定第一喷射脉冲和第二喷射脉冲之间的电停留时间的值，估计在第一喷射脉冲和第二喷射脉冲的闭合指令之间的喷射器闭合延迟的值 产生燃料喷射器闭合的瞬间，估计在产生第二喷射脉冲的电开启指令的瞬间与燃料喷射器打开的瞬间之间的喷射器打开延迟的值，并计算值 作为电停留时间值，喷射器关闭延迟值和喷射器打开延迟值的函数的液压停留时间。
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公开(公告)号：US20120024263A1
公开(公告)日：2012-02-02
申请号：US12916391
申请日：2010-10-29
IPC分类号： F02M69/46
CPC分类号： F02D41/3836 , F02D2041/1433 , F02D2200/0602 , F02D2200/0604 , F02D2250/04
摘要： A method is provided for estimating fuel injecting pressure of an injector belonging to a fuel injection system of an internal combustion engine. The fuel injection system includes, but is not limited to a fuel rail and at least one injector that are fluidly connected with the fuel rail through a connecting conduit. The method includes, but is not limited to modelling the pressure fluctuation within the connecting conduit according to the equation P=B·e−At cos(ωt), where A, B and ω are parameters, and t is a variable representing time, determining the dwell time between the injector opening and injector previous closing, and applying the determined dwell time to the equation in order to calculate the fuel injecting pressure.
摘要翻译： 提供一种用于估计属于内燃机的燃料喷射系统的喷射器的燃料喷射压力的方法。 燃料喷射系统包括但不限于通过连接管道与燃料轨道流体连接的燃料轨道和至少一个喷射器。 该方法包括但不限于根据等式P = B·e-At cos（ωt）对连接导管内的压力波动建模，其中A，B和ω是参数，t是表示时间的变量， 确定喷射器打开和喷射器先前关闭之间的停留时间，以及将确定的停留时间应用于方程式，以便计算燃料喷射压力。
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